Finding the Fourth Proportional to 8,356.37, 12,535.16 and 2,809.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,356.37 : 12,535.16 = 2,809.69 : x
2. Step 2: Convert to fraction form
   8,356.37/12,535.16 = 2,809.69/x
3. Step 3: Cross multiply
   8,356.37x = 12,535.16 × 2,809.69
4. Step 4: Simplify right side
   8,356.37x = 35,219,868.31
5. Step 5: Solve for x
   x = 35,219,868.31/8,356.37
6. Step 6: Final answer
   x = 4,214.74